1256200471 has 2 divisors, whose sum is σ = 1256200472. Its totient is φ = 1256200470.

The previous prime is 1256200469. The next prime is 1256200513. The reversal of 1256200471 is 1740026521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1256200471 - 2¹ = 1256200469 is a prime.

It is a super-3 number, since 3×1256200471³ (a number of 28 digits) contains 333 as substring.

Together with 1256200469, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1256200871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628100235 + 628100236.

It is an arithmetic number, because the mean of its divisors is an integer number (628100236).

Almost surely, 2^1256200471 is an apocalyptic number.

1256200471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1256200471 is an equidigital number, since it uses as much as digits as its factorization.

1256200471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1256200471 is about 35442.9184887475. The cubic root of 1256200471 is about 1078.9955427143.

Adding to 1256200471 its reverse (1740026521), we get a palindrome (2996226992).

The spelling of 1256200471 in words is "one billion, two hundred fifty-six million, two hundred thousand, four hundred seventy-one".